Perhaps you should try some spelling variations:
"publica administration" » "publica administracao" (Expand Search)
"publicasaa administration" » "publicasaa administracao" (Expand Search), "publicas administration" (Expand Search)
"publicoaaas administration" » "publicoaaas administracao" (Expand Search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("publica administration") OR ((("publicasaa administration") OR ("publicoaaas administration"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"publica administration\") OR (((\"publicasaa administration\") OR (\"publicoaaas administration\"))))".
• Removing quotes may allow a broader search: (( publica administration ) OR ((( publicasaa administration ) OR ( publicoaaas administration )))).
• Adding a wildcard symbol may retrieve word variants: (("publica administration") OR ((("publicasaa administration") OR ("publicoaaas administration"))))*.